Final answer:
The correct statement about pesticide use is that their use is regulated by law. Pesticides, which are used to control a variety of pests, can be harmful if not properly regulated and managed, but have also played a critical role in agriculture and disease control.
Step-by-step explanation:
Among the statements provided, the one that is true of pesticide use is: c. their use is regulated by law. This is because pesticides are substances designed to control pests, including a broad spectrum of agents, such as herbicides, insecticides, fungicides, and more. Pesticide use is strictly regulated to manage risks to humans and the environment. It is crucial to ensure that pesticides are applied in a responsible manner, which includes measures such as minimizing disruption to the environment and using protective equipment to reduce exposure risks for those applying them.
Pesticides have helped decrease losses in agriculture and control diseases transmitted by vectors like mosquitoes but their overuse can lead to ecological issues and health risks. Chemical pesticides can be toxic to humans, especially through long-term high-level exposure, and their usage is not a substitute for good sanitation practices. Only certified individuals can apply them in restaurants and other public spaces, ensuring both food safety and public health.